2003 Silverado 1500 Sportside 4WD Z71.
During light acceleration, or anytime that the engine would be under load. . . vehicle travelling around 40 or so MPH . . ..hear a light growling kinda sound, and feel a light vibration. I think it is probably Universal joints. . . .but hate to think so since Universal Joints and Driveshaft were replaced around 35K miles and I have about 69K on it now.
Hey i just bought a 2006 Silverado i dont have the problem with that but i do have the problem in my 2005/6 chevy work truck....i took it in for its 5000km service and they said they couldnt get it to make that noise Obviously but i am currently trying to figure this out also maybe if you here anything let me know



Just curious if you found anything out on this issue.
Steve
02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
99 Chevy Cavalier LS (105K+ miles - commuter car)
78 Chevy Suburban Silverado (454, 3/4 ton)
62 GMC 3/4 ton Pickup (350 police interceptor)
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